Earlier today Obama thanked volunteers at a campaign office in Chicago and then did satellite interviews to reach those few undecided voters still -- In states like Virginia and Ohio it. It's close. -- -- spill into the morning. I'm pretty confident that warmed up. President elect. -- If Obama wins what we call his midwestern firewall Ohio Iowa and Wisconsin -- he's just about guaranteed a victory tonight. We feel confident we've got the votes to win but it's going to depend ultimately on whether those boats torn up.

This transcript has been automatically generated and may not be 100% accurate.

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